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This newly discovered star-planet system is very unique - the planet orbits the host star in just 3.2 days, thus placing it very-very close to the star at a distance of 0.05 AU

Space scientists at the Physical Research Laboratory (PRL) in Ahmedabad have discovered a new exoplanet - a planet outside the solar system- orbiting too close to an evolved or aging star with a mass of 1.5 times that of the Sun and located 725 light years away. The discovery was done by an exoplanet search and study group of PRL lead by Prof Abhijit Chakraborthhy that included students and international collaborators from Europe and the USA, Indian Space Research Organisation (ISRO) said.

According to ISRO, the discovery was made using PRL Advanced Radial-velocity Abu-sky Search (PARAS) optical fiber-fed spectrograph, the first of its kind in India, on the 1.2 metre Telescope of PRL at its Mt Abu Observatory. Using PARAS, which has the capability to measure mass of an exoplanet, the exoplanet's mass is found to be 70 per cent and size about 1.4 times that of Jupiter.

assorted planet decor These measurements were carried out between December 2020 and March 2021. | Photo by David Menidrey on Unsplash

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Astronomers have discovered a new colossal object that is bigger than a comet slowly approaching the Solar System

Comets are the frozen leftovers from the formation of the solar system, the characteristics of a comet can be described as an object in space that looks like a bright star with a tail and that moves around the sun. Comets have always been a matter of interest for scientists and astronomers as they hold clues about the formation of the universe. In the past decade, astronomers have discovered a new colossal object that is bigger than any other comet on the outskirts of the Solar System and it is slowly approaching it.

Comet Bernardinelli-Bernstein was first observed in the year 2014 by the Dark Energy Survey and was named "2014 UN271". Estimated to be between 100 to 370 kilometres in width astronomers and scientists considered it to be a dwarf planet at first has now been classified as a comet. The comet orbiting around the sun at a much greater distance as compared to Neptune, the eighth and final planet in our solar system, hence the comet was originally termed as a trans-Neptunian Object or TNO.

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Photo by NASA on Unsplash

The team from Universities of Arizona State and Washington combined data from NASA's Phoenix Mars Lander and Mars Reconnaissance Orbiter with computer simulations to successfully match the brightness of Martian ice and determine its dust content.

A team of US scientists has developed a new approach to determine how dusty Mars ice really is, and whether it could melt.
Mars is a dusty planet, so much of its ice is also dusty and much darker than fresh snow we might see on Earth. The dustier the ice is, the darker and thus warmer the ice gets, which can affect both its stability and evolution through time. Under certain conditions, this might also mean that the ice could melt on Mars.
The team from Universities of Arizona State and Washington combined data from NASA's Phoenix Mars Lander and Mars Reconnaissance Orbiter with computer simulations to successfully match the brightness of Martian ice and determine its dust content. Their results have been published in the Journal of Geophysical Research: Planets. "There is a chance that this dusty and dark ice might melt a few centimetres down. And any subsurface liquid water produced from melting will be protected from evaporating in Mars' wispy atmosphere by the overlying blanket of ice," said Aditya Khuller, a planetary scientist at Arizona State University.


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Luminous

Solar power systems are the best and most consumer-friendly methods to achieve clean energy for your household.

By- Yashvi

Issues like global warming and climate change are increasingly gaining traction all around the globe. Due to this, individuals are shifting to more eco-friendly lifestyles. To do this, people have started taking small steps towards changing their way of living. One such step to sustainability is switching to renewable energy and power resources.

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